class AbstractProvider:
    def __init__(self):
        pass

    def get_data(self, iframe_content="", frame_content="", dom=None, extra=None):
        pass

class AbstractParser:
    def __init__(self):
        pass

    def get_data(self, data, extra=None):
        pass

class AbstractTimer:
    def __init__(self):
        pass

    def get_data(self, data, extra=None):
        pass